Recording door-lock.



- Patented N 0v. 5

J. P. COLE; RECORDING DOOR LOOK.

APPLICATION FILED NOV.13, 1911.

Patehted Nov. 5, 1912.

10 SHEETS S HBET 3 APPLICATION FILED NOV. 13, 1911.

I J. P. COLE. RECORDING DOOR LOOK;

J. I. COLE. RECORDING 900R LOOK.

' APPLIOATION FILED NOV. 13, 1911,

' Patented' Nov. 5, 1912.

10 SHEETS-$113151 5.

, www W QR J. P. COLE. RECORDING DOOR LOOK. APPLICATION FILED NOV. 13, 1911 Patented Nov. 5, 1912.

10 SHEET-S -SHEET a J. .P-, COLE. REQORDING DOOR LOCK. APPLICATION FILED NOV. 13, 1911.

- Patented Nov. 5, 1912.

J. F 00m. RECORDING DOOR LOOK.

APPLICATION FILED NOV. 13,1911.

' J? flw I #:14 504 1H 1/ LL (4'0 6 5 720 M 5' 76 f j 94' Zl0 Z15 zz 1m 25 RELEASE LETTER SE6,

, RIBBON SHIFT Patented Nov. 5, 1912.

10 SHEETS-SHEET a v I. F. COLE. RECORDING DOOR LOCK. APPLICATION fILEn Nov, 13, 1911.

Patem-m Nov. 5, 19x2.

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LP. 00L RECORDING 1100a LOCK. APPLIOATION FILED NOV; 13, 1911.

1,043,069; Patented Nov. 5, 1912.

10 SHEETS-SHEET 10.

ZOCK N0 4 Lock No 3 lOC/f N0 2 Thu/mu 3% wgg UNITED STATES PATENT? OFFICE.

JOSEPH F. COLE, OF ELKHART INDIANA,-ASSIGNOR TO NATIONAL RECORDING LOCK COMPANY, OF PORTLAND, MAINE, A CORPORATION OF MAINE.

RECORDING DOOR-LOCK.

F0 all whom it may concern;

Be it known that I, Josnrn F. Gone, a citizen of the United States, residing at.

Elkhart, in the county of Elkhart and State wherein the recording mechanism is located outside the lock-casing, preferably 1n the office of the building, and is electrically coniiec ted with the diiferential lock mechanism;

and'wherein, also, a set of difierential keys.

- is employed to properly set and actuate leased.

the recording mechanism and release the bolt of the lock, while a separate knob or other tool is employed to throw the bolt in both directions after thesame has been re- Among the salient-objects of my invention are, to provide, in a recording door-lock of the character above out ined, an improved mechanism for effecting, "y electrical means,

the setting of the printing segment which indicates the key used, to

rovide an improved system wherein a single recording mechanism may serve a plurality of locks or locks and gwatchmans boxes located at different points on or in the building and may make a record of the particular lock or box used at any given time; to provide a system wherein the number of elect-ric'circuits required between one or more locks and the recorder may be reduced to a minimum by the employment of a single circuit for the setting of the key or lock indicating printing segment and the differential setting of said segment by variations in the number of electrical pulsations or impulses transmit-ted over the circuit, according to the key used or the particular lock operated; and to pro-- vide improved means for preventing the actuation. of the look without establishing a record thereof.

Other minor objects and purposes of the invention will be apparent from the following description, when taken in connection with the accompanying drawings which illustrate one practical embodiment of the Figures 1 to 11, inclusive, are views per- Specification of Letters Patent.

LeGrand C. Bush and Joseph F. Cole, No. 981,164, dated January 10,1911,;

Patented Nov. 5, 1912] I Application filed November 13,1811. Serial No. 660,118.

.ta'ining to the lock mechanism and circuitclosing mechanism comprised .within the lock housing or casing that is attached to the door. In these views, Fig. 1 is a side elevation of the lock mechanism, the casing thereof appearing in vertical section and applied to the inner side of a door, a fragment of which latter also appears'in" vertical section.

Fig. 2 is a rear elevation'of the lock mechanism, with the casing in vertical's'ection, on. the line 2 2'of Fig. 1-. Fig. 3 is a horizontal section on'the line3 3 of Figs- 1 and 6, most of the parts of the lock mechanism f appearing in top plan. Fig. 4; is another horizontal section onthe line 4+4 of Figs. 2 and 6. Fig. 5 is still another horizontal SGCtIOII' on the line 5+5 of Fig. 6. Figs. 6

and 7 are vertical sectional views on the lines 6-6 and 7-7, respectively, of Fig. 3. Fig. 8 is a view similar to Fig. .6, but with parts removed for the sake of clearness and showing certain ofthe key-actuated parts" in raised position. Figs. 9, 10 and 11 are detail perspective views ofvarious parts of the selector mechanism through which the key and lock indicating segments are set to proper printing position according to the particular key orlock used. Figs. 12, 13 14;, and 15 are views showing aset of ditieren- .tial keys employed with the lock. Figs. 16

to" 21 inclusive are views of the recording mechanism. Of these, Fig. 16 is a rear eleline 1818of Fig. 1.7. Fig. 19 is a front- -elevational view. *Figs. 20 and 21 are enlarged detail views invertical section on the lines 20-2O and 21 21 of Fig. 17.

vational view. Fig. 17' is a side elevational view. Fig. 18 is a vertical section on the and 24 are detail elevational views of the letter-printing segment and number-printing segment',-respectively, and their actuating ratchets and spring. Figs. 25 and 26 are detail views of the letter and numberprinting segments, respectively, showing the printing faces thereof. Fig. 27 is a diagrammatic view illustrating one practical arrangement of electrical circuit connections between a lock and the recorder. Fig.

28 is a vertical section through one of the watchmans boxes. Fig. 29 is a View similar 'to Fig. 28 taken in a plane at right-angles tothe planeof the/latter figure} Fig. 30 is 25 lar key employed.

a horizontal sect-ion through one of the i tuation of the ribbon. feed devices ot the watchmans boxes. Fig. 31 is a group view printing mechanism are efiected through showing the difierential vibrator disks enr; 'electroanagnets, the circuits of which are ployed 1n the several watchmens boxes for closing the number-segment actuating circuits. Fig. 32 is a group view showing the differential devices in the several locks for controlling the differential movement of the lock-indicating segment. "Fig. 33. is a gen- 18 eraldiagrammatic view of a complete sys'-- tem showing a recorder, a, series of five locks and a series otfive Watchmens boxes all suitably interconnected.

In its most complete and perfect form my invention comprehends a recording system for one or a series of door locks applicable to large buildings such as stores, factories, warehouses, otlice buildings and the like, and wherein each individual lock is served by'a plurality of differential keys or like members which have the double function of releasing a detent or latch which holds the bolt against movement and recording the use and the hour and date of use 01'' the particu- The recording mechanism is further provided with means for making a record of the particular lock used at any given time (where a single recording mechanism serves a plurality of different locks). To this end the recording mecha msm is equipped, in addition to the usual day, hour and minute disks. with pivoted segments. one of which has on its periphery a plurality of symbols (preferably letters) 5 which distinguish the several keys pertain ing to each lock, and the other of which has on its periphery a plurality of symbols (preferably numerals) which distinguish the particular lock operatedat any given time.

The key recording segment is set to its proper printing position, according to the key used. by a pawland-ratchet mechanism that is actuated by intermittent impulses of an electro-lnagnet; these impulses being transmitted from a circuit-closing mechanism in the lock itselfthat efiects one or more rapid successive closures of the encuit through devices selectively operated by the keys; and this method of setting the key-recording segment .to proper printing position constitutes one important feature of my present invention. The lock-designating segment is similarly set to proper position. according to the lock used. by pawland-ratchet mechanism electrically actuated through difi erential impulse-creating mechanism embodied in the several locks of a complete system or equipment. The timeprinting disks of the recording mechanism are stepped forward minute by minute. hour by hour, and day byday. through the agency of a magnet controlled from the minutearbor of a clock mechanism. as usual in this class of devices; and the release of the key and lock-designating segments, and the accontrolled by contact devices also actuated by mechanism within the lock casing. in some situations where a recording door-lock system of this character would be employed, night watchmans boxes-are also used; and my invention, as embodied in a system employing a plurality of locks; is well adapted. by a simple extension, to serve as a means for recording the actuation or operation of a plurali'ty of night watchmans boxes where these latter are given identifying 1r mbers or other designations identical with those oi the locks themselves.

Referring now more specifically to Figs. 1 to 15 inclusive of the drawings, which illustrate the lock casing and the parts carried thereby, 1 designates a section of a door, to the inner side or which is suitably secured the lock casing designated as an entirety by 2. 3 designates an ordinary Yale lock sec tion set in the door 1 and provided with the usual key-controlled cylinder 4: mounted therein. 'Slidably keyed to the inner end of the cylinder t is a shaft section having a flat or other non-circular portion 5 that projects through that wall of the casing 9 that lies'against the door and an inner reduced circular portion 6 that telescopes at its free end within the inner end of the cylinder 7 of another Yale section 8 mounted within the casing 2. Rigidly secured within the casing and disposed parallel with the inner and outer walls thereof is an intermediate frame-plate 9 that supports the inner end of the Yale section 8 and likewise affords bearings for various parts of the lock mechanism as hereinafter described.

Slidably mounted on horizontal studs 10 and 11 ,(Figs. 5 and 6) secured to and extending between the frame-plate 9 and the inner wall of the casing 9. is the slotted shank 12 of a lock-bolt. the head 13 of which is adapted to play through an opening 14 in one of the edge walls of the lock casing. The bolt is actuated by a knob '15 having a square shank 15 (Fig. fitting within one end of a square coupling member 16 'revolubly mounted in a transverse socket 16 in the door 1 and pinned or. otherwise keyed to a shaft 17 iournaled in the lock casing near its lower end (Fig. 1). Asimilar in side knob 15 is similarly connected through a square coupling member 16 with the opposite end of the shaft 17. Fast on the shaft 17 is a pinion 18 (Figs. 1 and 6) that meshes with a gear 19 journaled on a cross-shaft 20; said gear having an eccentric wrist-pin 21 engaging a vertical slot 22 in the bolt-shank 19 and directly actuating the latter. The boltshank is also horizontally slotted, as shown at 93, on opposite sides of the slot (Fig. 6) to permit the play of the bolt over the shaft 20. The actuation of the shaft 20-and gear-19through a half turn effects the full actuation of, the bolt in one'direction; and

12, thereby locking the latter againstmovethe actuation of said shaft and gear through the remaining-half turn'effects the full actuation of the bolt in the opposite direction.

Pivoted'ona post or'stud 24' is a latch bail 25, the'cross member of which normally engages one of two notches 26 and 27 formed in the upper edge of the bolt-shank ment until said locking bail has been raised. On one side-of the bolt-shank 12 adjacent tov the upper edge thereof are a pair of laterally projecting studs 28 and 29 (Figs. 5 and 6) which also cotiperate with a device hereinafter described to prevent theshooting of the bolt before the recording mechanism has been set to printing position Inconnection with the locking bail 25 I also provide a device for locking the actuating-mechanism of the bolt atthe limits of the throw of the latter, the same comprising-a pin 30 (Figs.

5 and 7) projectinginwardly from a depending lug 31 on one of the arms 'of' the locking bail 25,said pin 30 cooperating with oppositely positioned-notches 32 formed in a disk 33 that is fast on-the shaft 20 which.

carries the gear 19, and is consequently rigid relatively to the latter. The wrist-pin21 may be secured directly to the face of the gear 19; or, as herein shown,'it may be secured to the face of the disk 33 which lies: alongsideand closely adjacent to the gear 19 and extend through a hole in the latter, as

. herein shown, thus increasingthe relative i rigidity of the disk 33 and gear 19. The I shaft 17, 'to which the knob for. throwing the bolt is directly applied, turns, of course, always in one and the same directiong and back turning thereof is prevented by a i ratchet 34 (Fig. 7 fast'on said shaft 17 and engaged by a spring-actuated dog 35.

The above described locking devices of the bolt and its actuating mechanism are withdrawn to free [the bolt and its actuating mechanism by means actuatedby a key when inserted in either of the Yale sections 3 and 8and given a half turn; such releasing means comprising the following parts.- On a postor stud 36projecting from .the inner wall'of 1 the casing 2 is hung abail member 37, the

parallelarms'of which are formed as eccentric straps 38tand 39,- the'former lying di-' rectly against the inner wall of the casing 2 and the latter lying directly against the innerface" ofthe frameplate 9, as clearly shownin Fig. 3.

Mounted in the inher wall 'of the casing 2 and confined against longitudinal movement by a'collar-40 is a short sleeve- 41 through which the shaft section 5 passes,

- and fast on said sleeve, within the lock casing is-an eccentric 42, and a ratchet-disk 43', The eccentric 42 is formed with a'deep' notch of the eccentric.

door. -38and 39 areraised by the eccentric 48,'the

44 in its flat side adapted to cooperate with pair of depending links 52 that are pivotally connected, with slight lostmotion, to the arms of the bail 25, whereby the raising of the eccentric straps through either of the eccentrics 42 and 48 efiects the raising of the locking bail 25, thusreleasing both the bolt and its actuating inechanism, so that the bolt may be thrown by either of the knobs 15 and 15. When "the outside eccentric 42 is turned by a key inserted in the Yale section 3, both eccentric straps 38 and 39 (which are rigidly connected) are raised, and at such time a tooth 53 on the eccentric strap 39 enters the notch 49 of the inner eccentric 48 and therebylocks thecylirider 7 of the inner Yale sec tion '8 against actuation from inside the S1m1larly,when the-eccentric arms tooth .46 of the'eccentric strap 38 engages the notch 44 of the eccentric 42 and thereby prevents actuation of the'cylinder 4 of the outer Yale section 3. from outside the door.

additional function of the eccentrics 42. and 48 and the teeth'46 and 53 is to insure. during the last half turn of the key, through the engagementofmsaid' eccentrics with the {upper ends of said teeth, the downward or return movement ofthe eccentric straps 38 and 39, although these latter are also springactuated on their downward or returnmove ment through their connectionto the locking bail25, as will hereinafter appear.

I will next describe the mechanism through which a plurality of differential kevs operating through the outer. Yale section 3 effect the'selective' setting, in there- .cording mechanism, of a'printing segment that carries type'symbols corresponding with the" designations 'of the several keys. Fast on the flat shaft section 5 is a cam 54 that is engaged. on its inner side .by aleaf spring- 55 mounted on a'stud, 56, whereby said cam and the slidable shaft to which it is secured are normally heldin the outer most position shown by full lines in Fig. 3. This cam 54, as the shaft 5, 6-, is turned, is

- adapted, depending upon the position of the cam 54, to raise one of aplurality of differentialsegmehts 57,- 58,59, and 60. 10) of stepped or'graduated widths,,which arc pivotally mounted on a transverse shaft 61 extending between t he inner wall of the pin T5.

inner wall of the casing 2.

-..-asing and the intermediate frame-plate 9. Also pivoted on the shaft 61 are a pair of upstanding arms 62 and 63 (Fig. 9) that are rigidly connected by a crossbar (i l and also. at their upper ends, by a rod 65, which latter, as best shown in Figs. 3 and 7, extends across and is adapted to be struck and moved by the stepped or ditlerential tac'es of the selector segments 57, 58, 59. and (to. Rigid with the arm 62 is a relatively long arm (36 (Figs. 7 and 9), to the free end of which is pivoted .1. depending rack-bar 67, the teeth of which engage the teeth of 'a' ratchet-disk 68 (Fig. 4:) .tast on a stub-shaft 69 secured to and projecting inwardly ot' the Fast. on the shaft (39 is a ratchet-shaped vibrator disk T0 (Fig. 7) cooperating with which is a circuit-closer in the form of a depending arm Tl hung from a pivot-pin 72 and havinga V-shaped tooth 71 adapted to engage the periphery of the vibrator-disk TO. The pivot-pin 72 is mounted in the upper ends of a pair of parallel frame-plates 73 that are rigidly mounted on studs or posts 74 secured to the inner wall of the casing. The arm Tl carries at its lower end a laterally projecting ,pin '75, best seen in Fig. t, that normally lies against the innermost, 76, of a pair of contact strips T6 and 77 thatv are insulated from each other and suspended from a bracket 78 secured to the inner wall of the casing. To the lower end of the depending rack-bar 67 is secured a tensilespring 79 anchored. at its lower end to a stud 80 (Figs. 1 and 7) projecting from the inner wall of the casing 2. whereby the arm (it; is normally urged in a downward direction. and whereby, after the arm 66 has been raised, the rack-bar is made etlective to transmit rotary movement to the shaft no and vibrator-disk 70. thereby imparting a rapid vibrating or pulsating movement to the circuit-closer 71. which transmits the latter to the contact-strip 76 through the The direction of pull of the spring T9 is such as to normally urge the teeth of the rack-bar T into engagement with the teeth of the ratchet=disk 68. but to insure such engagement. as well as to limit. the downward movement of the rack-bar 67 I term on the back 01 the latter a camshaped lug 81 (Figs. 4- and 7) that is adapted to engage a fixed stud S2 projecting inwardly from the inner wall of the casing.

Referring next to the mechanism through which a printing segment bearing type nu morals or other identifying symbols pertaining to the several locks of a system may be set to proper position to record the identifying symbol of whatever look was operated at anygiven time. it will be noted that each of the differential segments :37, 58. it). and 60. has. in rear of the rod 65, an upstanding lug or tooth 83, all of these lugs eas es normally lying flush with each other and on one side engaged with the rod 65, and thereby'sustaining the pivoted segments to which they belong in normal position to be. engaged and actuated by the cam When any one of the segments is raised by the cam 5%. its lug S3 is adapted to engagethe djacent edge of a curved plate Si carried by a bail e5 that is pivotally mounted on the shaft 61, the arms of said bail lying just outside the arms 62 and 63 (Fig. 9), and one of said arms being extended in the form of an arm 86 similar to and normally lying parallel with the arm 66. The arm 86 is connected to a contact-closing mechanism substantially identical wit-h that already described and set in operation by the arm 36. and consists oi. a depending rack-bar 87 (Figs. 6 and 8) engaging a ratchet-disk 88 fast on a stub'shaft S9 projecting from the frame-plate 9, said shaft 89 also having fast. thereon a vibratondisk 90 cooperating with a depending circuit-closer arm 91 hung from the pivot-pin 72 and having a V-shaped tooth 91 engaging the toothed periphery of the vibrator-disk 90. i In the lower end of the arm 91 is a laterally projecting pin 92 that engages the innermost, 93, of a pair of contact strips 93 and 9t insulated from each other and suspended from a supporting bracket carried by the frai'ne plate 9. To the lower end of the raclobar 87 is secured a tensile-spring 96. the lower end-of which is anchored to a stud 97 on the frame-plate S); to which latter. it may here be mentioned,

is also anchored the lower end of a tensile' Spring 98 that is connected to and normally draws down the locking-baii 25. The rack-bar 87 is also provided-with a cam projection 99 that cooperates with a fixed stud 100 to limit the downward morement of the rack-bar S7 andinsure its engagement with the ratchet-disk S3. ln practice. the curved plates 84 0f the several locks that may be connected to a common recording mechanism are made of varying widths, as shown in Fig. 32: that is to say, the upper operative edges ot said curved plates are at varying distances from the adjacent sides of the lugs 83 ot' the selector segn'lents so that the several plates 94 of a series of locks will be engaged at dill'erent times in the movements of the selector segments, and conse (mently the arm 86 will be swung through ditterent angles in the several locks, with a consequent ditierence in the number of successive closures of the contact? strips 93 and 94'; and a corresponding difference in the number of electrical impulses transmitted to the segment-setting devices of the recording mechanism.

By reference to Fig. at it will be observed that the ratchet-disks (3S and 88 are locked to two .simple'trains of speed multiplying gears and pinions designated as an entirety by 1 01 and 102, respectively, which drive speed-regulating fans 101 and 102; these gear trains and fans serving simply to .control the rate of speed of the circuit-closing vibrating mechanism, and consequently the rapidity of the pulsations transmitted over the circuit.

Referring again to the selective mechanism for setting the key-indicating segment of the recording mechanism, it will be. observed by reference to Figs. 12to15 inclusive, that each lock is provided with a plurality of differential keys or similar lockreleasmg and recording mechanism actuating devices designed to be carried by the "different officers or employees of an estabi and C, respectively, of decreasing lengths in the order named; while the key I) is a plain key with no longitudinal extension. It will he manifest that if. the key D is in serted in the Yale section 3, the movable shaft 5, 6, will not be shifted longitudinally, and consequently the cam 54 will engage and lift the selector-segment 57. If the key C be inserted, its extension C will shift the eam 5110 a position in which it will engage the segment 58. If the key B be inserted, its extension '13 will shift the cam 54 to 'a position in which the segment 59 will be engaged by the cam; and if the key A be inserted, its extension A will shift the cam 54L to the dotted lineposition shown in Fig.

3 wherein the segment 60 will be engaged by the cam. i

I also preferably provide the key-record ing segment of the recording mechanism with a symbol, conveniently the letter I, which indicates the actuation of the lock from the inside by any one of the keys: and-the selective device for setting the ment with this symbolin printing position is similar to the differential selective devices 57, 58, 59 and 60 above described, and consists of a segment 103 pivoted on the shaft (31 alongside the segment 60 and formed with an operating face in graduated or stepped relation to the operating faces of the segments 57, 58, 59, and 60, as clearly shown in Figs. 3 and 10. This segment operates to effect a single closure of the contact strips 76 and -77 through the same, n'iechanism,

already described, by which the differential closures of said contact strips are effected by the segments 57, 58, 59, and 60; .and it is also provided with a lug 10a having the same function as the lugs 83 of the remaining segments to effect the closure of the contact strips 93 and 9 1. This segment 103' is actuated by a cam 105 that is similar to but independent ofthe cam 5 1and'is fast on the inner end of the rotatable cylinder 7 of the inner Yale section 8, said cam being actuated by any one of the keys that may be inserted in the Yale section 8 and turned therein. This segment 103 is formed with I a tail-piece 106, the upper edge of which is adapted to be engaged by the lower edge of the cross member of the bail 85, as clearly shown in Fig. .8, whenever said bail is rocked downwardly by the engagement of i any of the lugs 83 and 104; with the upper edge of the plate '8 1, which always occurs whenever any key is inserted and turned either from the outside or from the inside. To the free end of the tail-piece 106 is pivoted a depending locking-bar 107, the lower portion of which has a guide-slot 108 playing over the pivot shaft 24 of the bail 25, and also a vertical notch 109 adapted, as the locking bar 107 descends, to lockingly engage one of the studs,28 and 29 on the shank of the bolt,'so as to prevent actuation of the latter until after the key and lcck-indicating segments of the recording mechanism have been set'to correct printing positions. 9

In'the operation of the look, from either the outside or the inside, the key is first inserted, then turned half way around, which releases the bolt and sets the printing segments to correct printing position, the knob is then turned completely around, whichthrows the bolt, and the key is then actuated through the remaining half turn, which again locks the bolt. I provide in thelock mechanism operated by the knob which throws the boltfor closing electric circuits through which the printed impression is made upon. the paper ribbon of the prir ting mechanism and through which the feed of the paper and inking ribbons of the said inechanism is effected; and I also provide within the lock a circuit-closing mechanism that operates during" the last half turn of the key for effecting the release of the key and lock designating segments, which latter are automatically spring-aetuated to normal position. Referring first to the circuit-closing mechanism for effecting the printing impression and feed of the paper and inking ribbons,

which is best shown in Fig. 2, 110 and 111 designate a pair of insulated contact strips mounted on one end of a bracket 112 secured to the back side of the frame-plate 9, said contact stripsbeing in a circuit that actu ates, through an electro-magnetin the recording mechanism, the printing platen. Said bracketllQ also has attached thereto beneath the contacts 110 and 111, a pair of insulated contact strips 113 and .11 1, that are in,a circuit which, through an.electro-magnet in the recording mechanism, effects the v and 113 are provided on their adjacent sides with cam lugs and 116, respectively, that are engaged successively by a pair of camwipers 117 and 11S fast on the bolt-actuating shaft 20; the cam-wipers 117 and 118- being so disposed that each alternately close, the contacts 110 and 111 and the contacts 113 and 114, the closing of the former contacts, however, always slightly preceding the closing of the latter contacts.

The controlling mechanism of the circuit which, through an electro-magnet in the recording mechanism, effects the release of the key and lock-indicating segments, is-best shown in Figs. 1 and 2, and comprises a pair of contact strips 11$), 120insulated and suspended from a bracket 121 secured to one corner of the frame-plate 9. The lower end of'the strip 119 has an upwardly inclined hook-like extension 119 which engages the teeth of a ratchet-disk 122 pivoted at 123 on the rear side of the frame-plate 9. The ratchet 122 is actuated in the direction indicated by the arrow, Fig. 2, one tooth at a time, by a pawl 121- pivotally suspended from the free end of an arm 125 and normally urged into engagement with the ratchet-disk by a spring 126. The arm 125 pivoted at its'otlier end to a rigid bar 127 srcurel tothe outer ends of the posts or studs iti'and 24, and is connected by a lateral pin 128 to one of the links 52 (Figs. 6 and 8), said pin playing through a slot 129 in the frame-plate 9. 1 rom this it Will be seen that as the link is raised during the first half turn of the key, the arm 125 will be raised to carry the pawl 12% into engagementwith the next tooth of the ratchet 122; and as soon as the spring '98, which is 0011* nect'cd to the locking bail 25, acts to draw the latter down, the link 52 is drawn (lOWI1 wardlv, and consequently the arm 125 and pawl 12 1-, causing a tooth of the ratchet-disk to effect an instantaneous closure of the contact strips 11!) and 120-. The hook-shaped end of the strip 119 has an additional function to act as a' detent to prevent back turn ing of the ratchet 122 upon the upward or idle movement of the pawl 121.

On the back side of the frame-plate 9 at its upper end is secured a binding-post carrier 4 130 formed of suitable non-conducting ma-' terial, of which material the ratchet-disk 122 is also formed, and carrying a 'series'of six bindingposts which will be'more particularly referred to in connection with the description of the various circuits.

nisin, which will preferably be located in the main oiiice of the building in which the system is installed, and which is shown ii Figs. 16 to 26, inclusive, of the drawing" it maybe stated at the outset that this niec anism is, in many respects, similar to re cording mechanisms used in connection with time-clocks, time-stamps, and the like and includes. a series of printing disks hearing type indicating the days of the Week, the hours, and the minutes, and driven electrically by mechanism controlled by an ordinary clock. In addition, it contains two pivoted segments, one bearing a series of letters corresponding with the various keys used on each lock, and the other bearing a series of numerals corresponding with 1itlll1- bers assigned to the several locks of a system. The mechanism also includes magnets. for setting the letter and number seg ments to positions determined by the particular keys used or the particular locks operated, a magnet f n-actuatingthe -ii'inting platen, a magnet for actuating the paper and inking ribbon shift, and a magnet for effecting the release from set positions of the nected and spaced by tie-rods 1111. Opposite the upper portion of the franieplate 133 is another parallel frame-plate 135 su tably cured thereto and spacetil therefrom by tierods 13(3; and on the outer side of the frame plate 132 and resting on the base plate 131 is an ordinary clock-work mechanism desig nated as an entirety by 1237. llotatahi'y mounted side by side on a shaft 138 (Fig. 22) extending between the frame-plates 132- and 133 is a type-wheel 139 indicating the days of the week, a type-wheel '1-10 indicating the minutes of each hour, a type-wheel 111 bearing two series of numerals 1 to 12 inclusive indicating the twenty-four hours of a'day, and, preferaliily, the A. M. and l. M. divisions of a day, a printing segment 112 (see Figs. 23 and havii'ig on its periphery the letters W, I, A, B, (l, l), in the order named, and a segment 11 3 see Figs. 2% and having on its periphery the nu merals l. 2, 2 1,5, t). in the order naiiied. Fast with the minute wheel t l is a ratclnit-disk 1111 (Figs. 21 and 22) that is driven by a bent arm 115 iinilar to the anchor of an ordinary anchor escapenieiit, this member being fast on a shaft 1113 journaled in and between the frame-plates 1 52 and 135 (Fig. 17). Fast on the shaft 1 115. bc-

117 19) that; cooperates This magnet is in a circuit which includes a pair of V t spring-contact strips it!) and lfigs. 1U Referring now to the recording mechaand 17) that bear against a, rotarv cam 13! fast on the minute arbor 152 of the clock train. The strip 130 carries a s ;ii.'iiig-tougtie 153 that normally lies just behind and slightly separated from the s rip 1-19: but

'the strip 150 slightly shorter than the spring drops 011' the peak of-tliecam The circuit] is closed by-this device once each minute through the'magnet 148, "wherebyt'heminlite-printing wheel is. stepped forward at-reg'ular minute intervals. 5 Cam=controlled pawl-and-ratchet mechanismtransmits the movement of the minute wheel to the hour wheel and the day wheel. Any approved mechanism for this purpose may be emp oyed, but a simple and practical mecha-..

msm is illustrated mainly in Figs. 16, 20,

and 21. On the opposite side of the minute wheel 140 from theiratchet 144 is a cam 154 that engages the end of anfarmf155, which latter forms one arm of a bail 156 pivoted on one of the tie-rods 134 of the frame.

The other arm 157-ofsaid bail is drawn downwardly by a spring158 (Fig. 18) to hold the arm 155 in engagement 'with'the cam 154. To the arm is pivoted a pawl 159 v(Fig. 20) held in engagement by a 159 with a ratchet-disk 160 on one side of the hour-wheel 141. Also fast with the hour wheel 141 is another cam 161 which engages one arm, 162, of a bail 163 that is pivoted on a cross-rod 164, the other arm 165 of said bail (see Fig. 16) having pivoted thereto a pawl 166 spring-actuated into en.- gagement with a fourteen tooth ratchet 167 on the side of the day wheel 139, said day wheel carrying type designating the days of the week for a period of two weeks. Spring-actuated dogs 168 and 169 prevent back turning of the'ratchet-disks 160 and 167, respectively, and of the type wheels fast therewith. Referring to Figs. 22, 23, and'24, the hub 170 of the numeral segment 143 is hollow and contains a coil-spring 171..." The hub 172 of the letter segment142 carries a lug 173 to which one end of the spring" 171 is attached, theopposite endof said spring being hooked over a lug 174 carried by the hub 170' of the segment 143. The tendency of this spring is to swing the, two segments outwardly in opposite directions, their normal position being that shown in Fig. 18 wherein the segments 142 and 143 are engaged with fixed stops 17 5 and 176, respectively. The hubs of the segments 142 and 143 are further provided withratchets' 177.

and 178, respectively, the teeth "of which point in opposite, directions when the segments are operatively assembled; The ratchet-disks 177 and 178 are actuated by pawls 17 9' and 180, respectively, which project through slots inthe frame-plate 133 and are carried by arms 181 and 182 (Fig. 19) that arepivotally connected at their lower ends to the free ends of a pair of pivoted armatures 183 and 184, respectively, pertainingto magnets 185 and 186 mounted on Lgframes 1 87 and 188; directly below thecon- .nected frame-plates 133 and 135 (Fig. 17).

The rinting segments 142 and 143 are retained in set position by a pair of detent pawls 189 and 190, which normally engage the ratchets 177 and 178, respectively.

- These pawls are pivoted on the back side of the frai'ne-plate 133 and have laterally ofi' set noses 189 and 190, respectively, that extend and operate through a rectangular slot 191- in the frame-plate 133. The pawl 190 is "formed with a lateral extension 192 that overhangs its nose and also overlies the laterally extending nose. of thecompanion pawl 189, with-sufficient olearness between them to permit the idle riding of the pawl 189 over its ratchet when thesegment 142.

is 'moving Into a printing position. The

pawl 189, as clearly shown in Fig. 19, is fast with the pivoted armature 193 of a seg ment-release -.Inagn'et 194 secured between the frame-plates 133 and 135 opposite the clock-controlled magnet 148. The pawls 189 and 190 are normally drawn downwardly into engagement with their respecy tive ratchetsbvsprings 195' and 196, respectively, (Fig. 19) and the arms 181 and 182 which carry the actuating .pawls of the segments 142 and 143 are normally held in raised position by spring's197 and 198, re-

it will be plain that the energizing of the spectively, (Fig. 18), From the=foregoing magnets ,185 fand -186 will effect a step-by- I step swinging of *'tl1e segments 142 and 143 to printing position, depending upon'the number of impulses transmitted. through said magnets; whilea subsequent impulse transmitted through the magnet 194 will raise both detent'pawls 189 and 190, permitting the segments to swing outwardly, under the force of spring 171, to normal position in which they abut against the stops 175 and 176.

I a 199 designates the printing platen disposed beneath andtransvers'ely of the several printing wheels and segments and .carriedon thefree end of an arm 200 pivoted on. a cross-pin 201. To the underside of' the platen 199 is pivoted an adjustable thrust-link 202 resting upon the short arm of a pivoted armature lever 203' pertaining to a twin spool printing niagnet 204. The printing platen 199 is normally urged downwardly by aspring 205 (Fig. 16) anchored to a cross-pin 206.

Between. the type-wheels and segments and the printing platen'extends a paper ribbon 207 and an inking ribbon 208, the

former extending between 'receiving and delivery spools 209 and 210, respectively, and the latter extending between receiving and delivery spools 211 andp212,respectively. The receiving spools 209and 211 are simultaneously actuated from the armature 213 t'rameplate 133, and pawls 219 and 220 pivotally mounted on the arm 216 and operating with the ratchet 220 and 221 fast with the spools 209' and 211, respectively. Pivoted on the cross-pin 206 is a lever 222 (Fig. 18) the free end of one arm of which cngagesthe under side of the armature i203 and the free end of .the other arm of which engages the under side of the armature 213, from which it is apparent. that the downward swing of either armature will raise the opposite armature. ilenee. when the mag net 520i is energized to ell'ect the printing, the armature 213 and the pawls 219 and 220 are simultaneously raised to take a fresh hold on the ratehets of the receiving spools; and the subsequent energizing ot' the magnet 211 draws the armature 213 and the pawls connected therewith downwardly, thus eti'ecting the teed and winding-up of the printing and inking ribbons. 1

Secured'to the frame-plate 133 centrally between the magnets 185 and 186 (Fig. 19) is a binding-post carrier (Fig. 19) car rying a group of binding-posts to facilitate distribution of the circuits to the several eleetroanagnets of the recording mechanism, as will be more fully explained in describing. the electrical connections between the loci: mechanism and the recording mechanism.

in Fig. 27 I have shown one practical arrangement of electrical transmission between one of the locks and the recorder. Referring thereto, E designates a battery or other source of electrical energy, preferably located somewhere adjacent to the recording mechanism, from the positive pole of which extends a main circuit wire F to a bindingpost n on the plate 223 of the recorder, and trom the negative side oi which extends another main circuitwirc to the bindingpost g on the plate 22 :1. From the binding post n a single circuit wire F :onducts the current from the battery to the several centact devices of the locl; hrough a bindingpost it on the carrier 130 of the latter. and branch wires F and F; while other branch wires F* and F conduct the current from binding-post nthrough magnet lid, to the clock-controlled contacts ot the recorder.

The clock-controlled circuit which sets the 1, i are wheels of the recordin machanism may be traced as follows: battery 1), wire F,

biudingqpost 17.. wire F magnet 14S, wire F, binding-post a, wire F, binding-post u, 1 wire F contacts 77, 76, wire I), binding-pest w, wire 7), binding-post 7), wireb, magnet 185, wire b binding-post and wire Gr to battery. 1

The circuit through which the lock-indicating segment (number segment) is set to printing position comprises battery E, wire F, binding-post 72., wire F, bindingpost it, wire F contacts 9%, 93, wire c, binding-post 00, wire 0, binding-post a, wire 0 magnet 18G, wire binding-post q, and wire G- to battery.

The segment-release circuit may be traced as follows: battery E, wire F, hind lug-post a, wire F, binding-post 24, wire F, contacts 120, 119, wire (Z, binding-post 2 wire at, binding-post 7*, wire d, magnet 191, wire (Z tery.

The printing circuit comprises battery E, wire F, binding-post a, wire F, bindingpost it, wire F contacts 111, 110, wire. 0, binding-post wire a. binding-post 5, wire 0 magnet -204-, wire o, binding-post q, and wire G to battery.

The ribbon shift circuit comprises battery E, wire F, binding-post n, wire F, binding-posts 24, wire F contacts 111, 113, wire binding-post 1 wire f, binding-post 0, wire 7'*, ma gnet 214i, wire 7', binding post, r and wire G to battery.

in its most complete form my invention contemplates and includes the use of one or more nightwatchmans boxes adapted to be cally connected with the recording 'mechanism. These boxes, of course,.c ontain no luck mechanism, but contain differential means for setting to printing position the Inuneral- J riuting segment 143 of the recording mechanism. and means tor effecting the printing, the release of the numeral seg ment and the shitting of the paper and inking ribbons similar in principle to the corresponding devices already described in connection with the locks; the watchmans boxes being identified by the same series of nuuu-rals or other symbols that are used to identity the several locks of the system, and hence making practicable the use ot a. single printing segment to record the use of both the locks and the boxes. in Figs. 29, 9,0 and ll, 1 have illustrated a simple and practical watehniairs b x mechanism, which may. of course, be pla ed either 'on the inside or the outside of the building, and wherein 221 designates the casing of the box secured to a wall and having an tmening'on its inner "side to receive one end, of a fixed cylinder 24; which cylinder a rotatable cylinder 22? having a key-way 28 adapted to receive the watclnnan's hey Vs. The rotary cylinder :22

binding-post g and wire G to bat actuated by a watclnnans hey and electri;

has a reduced extension which extends passed throin h the wall within across the box-casing 224 and is rotatably similar in form and function to the cams 54 and 165. As the shaft229 isfturned by'the key, the cam 233 engagesthel'ower edge of a pivoted arm 234, raising the same against the pull ofa tension-spring235 that is anchored at its lower end to the bottom wall of the casing. To the free end of the arm 234 is pivoted a depending rack-bar 236, the teeth of which. engage theteeth of the ratchet-ring 232, being maintained in engagement with the latter by a spring 237. The swinging of the arm 234 is of such extent as to effect one complete rotation of the shaft231 at each downward movement of the rack-bar 286;

printing segment 143 to a position to print.

the numeralG there is provided fast on theshaft 231 a vibrator-disk 240 containing on its periphery a series of five adjacent teeth,

as clearly shown in Fig. 28, the remaining I portion of the periphery of said disk being smooth or blank. Cooperating with this disk 240 is a circuit-closer in the form of a depending pivoted arm 241 provided with a V-shaped tooth 241" adapted to ride over the periphery of the disk 240 and, of course,

-be vibrated by the five teeth of said disk as the latter rotates. t-lie arm 241 carries a lateral pin or stud The lowenend of 242 adapted to engage one of a pair of contact-strips 243 and 244 and close an electric circuit between said strips; the arm 24l,

in the present instance, effecting a series of five successive rapid closures of the circuit, and consequently the transmission of five rapid electrical impulses to the magnet 186 \vhich-actuates the numeral segment 143 of the recording mechanism. Also fast on the shaft 231 are disks 245, 246, and 247, on

the periphery of which are single teeth 245, 246, and 247, respectively, set at spaced intervals around the axis of the shaft 231, as clearly shown in Fig. 28. Co'ciperating with the disks 245, 246, and 247 are depending pivoted arms 248, 249, and 250, respectively, structurallyidenticalwith the arm 241 and each having a V-shaped tooth engaging the periphery of one of the disks 245, 246, and'247. These armscarry'at their lowerv ends laterally projecting pins 251, 252, and 253, respect1vely.- The pin 251 engages one of a pair of depending contactstrips 254, and 255; ,the pin 252 engages one of a pair of depending contact-strips 256, 257; the pin 253 engages one of a pair the circuit of the segmentreleasing magnet 194.

From the foregoing will be manifest ,thatat each revolution of the shaft 231,

the numeral segment 14?). will first be set to proper printing position to record the particular watchmans box actuated; and the printing of the record, thefeed of the paper and inking ribbons, and the release of the numeral segment will then be successively performed, all of theseoperations taking place at each applicationof the watchmans key W 'tothe box.

Inasmuch as the numeral segment pormally-stands at the 1 printing position, the wat'chmans box corresponding to this particular number will not require the toothed disk 240 and the circuit-closing mechanism actuated thereby, nor the disk 247 and the circuit-closing mechanism of the segment-releasing magnet actuated thereby. Box No. 2 will contain a vibrator-disk 240having one tooth, box No.3 a disk 240 having two teeth, box No.4 a disk 240 having three teeth, box No. 5 a'disk 240 having four teeth, and box No. 6 (which is herein shown) a disk 240 having five teeth; these disks,

240, provided with a numerically graduated I series of teeth, being-conventionally illustrated in Fig; 31'. The disk 240 is geared to a train 260 of speed multiplying gears and pinions and afan 260., for the same purpose attributed to the similar mechanism inthe locks. It may here benoted, also, that since the numeralsegment nor mally stands at the 1 printing position, lock No. 1 of a series of locks belonging to the system will not require any numeral seg- 'circuit of the paper and inking ribbon feed magnet 214; and the contact 258, 259 is in ment shifting mechanism; but for the sake of uniformity in manufacture and installation, and to make the locks interchangeable by merely changingthe numerical segment selector (plate 84), this will preferably be taken care of by simply omitting the selector-plate 84 from the mechanism of lock No. 1, or making it so narrow as not to be brought into play by any of the keys.

The circuit wires of the several contact devices in the watchmans boxes may, of

course. be ledinto and connected with the circuit wires of the corresponding contactdevices belonging to locks having corre-' sponding numbers or otherwise correspondingly identified. In Fig. 33 I ha ve shown in diagram a complete system employing a recording mechanism, a series offive locks,

and aseries of five watchmans boxes, the

it differentially locks being identified by the numbers 1 to 5 inclusive, and the watchmans boxes being similarly identified. The circuit connections between the several locks and the actuating magnets of the recording mechanism corre-. spond with the circuit connections above described and shown in F 2-7 between a single lock andthe recording mechanism, with the omission oi the detail binding-post arrangement. and distribution on the recorder; and by reference to Fig. it will be seen that the several watchmans boxes are connected into the circuit wires of the corresponding locks in such a manner as to ettectthe properly timed actuation of the number-segment magnet, the printing magnet, the ribbon-teed magnet, andlthe segment-release magnet upon the operation of each box. More specifically, one side' of all the several contacts oi the waachmans box connected into the main lead wire F by a wire F; the other side of the segmentsetting contact isponnected by a wire 0 into the circuit wire a; the other side of the printing ccntaet is connected by a Wire 6* into the printing circuit wire 6; the other side of the ribbon-feed contact is connected by a wire f into the circuit wire f; and the other side of the segment-release contact is connected by a wire cl" into the circuit wire (Z.

"Vhile I have shown in Figs. 27 and 83 one practical arrangement ofthe wiring between the several locks and watchmans boxes and the actuating devices of the recording mechanism, it will be understood that the details of such wiring constitute no part of the present invention but may, and will, of course, be varied to suit theexigen- I cies of each particular installation and the ideas of the person incharge of such installation.

From the foregoing it will be apparent that the chief novel improvements in the art which my present invention presents consist; first, in a mechanism whereby a movable key designating printing member of the recording mechanism may be set to correctprinting position by and t'rom any one of a plurality of dif- 'terential" keys over a single circuit upon the principleof transmitting to the actuating magnet of the movable printing member numerically differentiated pulsations or electrical impulses, according to the particular key used, each individual impulse acting to advance the printing member by a single step; and second, in a difi'erential mechanism embodiedin a plurality of locks belonging to a single system whereby, by means such as those last above mentioned, a differentially movable printing member bearing type corresponding with the identifying symbols of the several locks of the systenumay be set to correct printing posigiven time.

tion to produce a record showing which one of the'several locks was actuated at any It will be manifest to those skilled in the art that the particular details of mechanism for effecting these results in accordance with the above-described principles of operation may be very considerably modified without involving any departure from these principles or sacrificing any of the advantages secured thereby; and hence, in the appended claims, I have soughtto setforth in broad terms the essential instrumentalities for embodying these principles and without substantial limitation asv to the specific forms and arrangement of such instrumentalities.

I claim 1. In a recording door-lock, the'combination with a lock, of a recording mechanism mounted outside the lock casing and including a movable key-designating member bearing type corresponding to the identitying symbols of a plurality of. differential keys, electrically actuated means for shitting said key-designating member by one or more successive steps to any of a plurality of different printing positions, an electri circuit between said electrically actuated means and said look, a plurality of ditlerential keys,- key-controlled selective mechanism for eliecting the transmission of numerically differentiated successive electrical impulses over said circuit according to the key used, and means for producing a printed record from said key-designating member.

2. In a recording doorlock, the eombination with a lock, of a recording mechanism mounted outside the lock casing and including a movable key-designating member bearing type corresponding tothe identifying symbols of a'plu'rality of ditt'erential keys, electrically actuated means for.

including a movable key-designating men'r ber bearing type corresponding to the identifying symbols of a plurality of ditterential keys, mechanism including a magnet for shifting said key-designating member by one or more successive steps to any of a nis1n mounted outside the lock casing and 

